WhatsApp is moving to be a communications portal much like WeChat is in China where you can do everything in your life in it including all manner of shopping/financial/payments systems. The runtime is segregated by the rest of BB10 by design thus it doesn't have features like NFC access and Android financial apps often see the runtime as a rooted devices and you can't upload checks into accts. These design limitations aren't going to let WhatsApp do what it wants to do and thus Android WhatsApp will not be working in the runtime.

Supposedly it is because it is not profitable to keep the WhatsApp application on an operating system with very few users, that upset me greatly

Yeah, if only they'd open up their API, even if only for the basic features. Then we could have a legal 3rd party WA client. Still don't see why they're not opening it up, given that owner Facebook is very open with the FB API's...